Arrr = A contemplative sound; the precursor to a profound and deeply intelligent comment or observation. Not to be confused with YAAAAAAARRRRGHHHHGHHH which is the sound made by someone who's just been run through by a cutlass, or YAAAAAAARRRRHHARRRRR! which is the sound made by somebody who's just run someone through with a cutlass.

yarr - A greeting to a fellow crewman, barman, cap'n in fact everyone yer know.
arrrgh - A typical response after some blaggard has stuck a cutlass in yer guts.

The path of the righteous man is beset on all sides by the inequities of the selfish and the tyranny of evil men. Blessed is he who in the name of charity and goodwill shepherds the weak through the valley of darkness, for he is truly his brother's keeper and the finder of lost children. And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my brothers. And you will know my name is the Lord when I lay my vengeance upon thee.